The unusual work environment that helped Naughty Dog make the hot game 'Uncharted 4'

At Santa Monica video game maker Naughty Dog, it doesn't take long to notice that co-responsibilities are commonplace. Pitting bosses against each other to decide on characters, gameplay and script is a key strategy the firm credits for its succession of highly-rated games. The latest, "Uncharted 4: A Thief's End," topped the charts in several countries with 2.7 million copies sold worldwide during its first week on the market this month. The 60 Sony Playstation 4 exclusive culminates Naughty Dog's series featuring fictional treasure hunter Nathan Drake. Naughty Dog has long cultivated an unusually free-flowing development process that empowers anyone at any stage to share their ideas -- and defend them.